Selecting mechanism and systems.



A. F. DIXON.

SELECTING MECHANISM AND SYSTEM.

APPLICATION FILED MAR. 2T. 191

Patented Jun. 2, 1917.

,peratus should 'pase throughlcorresponiimg .stages of action yitropeifatvel-y the seme time, it; has been customary to adopt Keithern Amosr. Dixon', or NEWARK. NEW "JEnsnyffessmnoifmi gregge WESTERN nLnc'rnIoco-MPANX, Inconromvrnp, n. comme@ minnie; j

To att whom t nog concern Be it knownfthet I, Amos' citize' of theUnite'Statesg Newnfk, in they county of Essex 'and Sta-te of have.invented certain new and New z elsey, useful -improvements inSelecting. 'Mechef' Dixon; e residing' at nisihs l(ind Systems,` ofwhich the following-i iegiven .cyclel'ofoperationszi completed to'prevent un' inevertentI` end fthe consequent likelihood. of`erron.cou-s fselectivezietionsl: f H

is full, clear, concise, undy exerct'delscrlpf 'This invention relates,lto selecting 'mechae niSms and systems of' the electromechamicall1 Ins'ystems'oitlie' aloove type,';wherein itf's. necesary thatcooperativelyoperating np-y tivo Wellknown y enpedientsg. to eng-ploy entmneous A- synchronrzing-g pparatus" or pend upon a marginalconstruction `'ofi-"t elements to insure equefmovementin eqn-@ii times.Both of these arrangements ere'r however;v open to' obje'ction. 7'fTlnefirst, they. additional expensive 1apparutueisA required.

and the second', that between tbpoints initiation and compltionrof:the', 'cyclee'off operation the elementsiofthe he running wildyillu-ingthesev mtervravls.L .i

vifle nn improved syetemlocated' :i't more or lees` System, particularlyadapted for' printing -distributer positively System are in'-flep'endent. ofench other and mey, be seid to One of theprineipziliohjec'ts-of this inverition is to overcome theSeobj-ectionsandl pro# I wherein .app argit'vu f., widely f 'separat-edf points, whenacting together, dependen tlyv u'cycleof operzitionls.' 'f y y Another'object' is "to lprovide 'improved means for ,preventing the'inadvertent'.rep,

A further. object is to prvvide animi" rovefl and simple selecting'mechanism and telegraphs. l

For' the accomplishment ofthese end's the invention contemplates n'seli"controlli'ng employ-Step current'. with current control means,:intl u current controller! in each Stege of its operation by thecollector, and

erim'rme'mnomnun. No sieren; 5 sPeQiMaeon @t Leers, raten'.

met@ pm determined-by; the @ritmi y Ingen "unil 4,

i ing` vring 11.1 Thel i ftlapte'df-to. be, connecterly'bv L .commonVeend-iictipg; ring 1 4Heated' ins desired; he' 'greotcrA 4'thetx-:ivofeeil by the brushes,

collector cooperating l 'I --Petenten miie., wie,

.17/,363 l rute' "eifects of ter-isitics are .current imi-)niece The,invention. Iiertherfeoiitemn t the 1i association fof. thexahov tstlrele: -"t10me.hanc'f11means'fo PQSLM'. rest- -in gl the' action' ofthecurrefnt' collec ry `hen beets of the 1inforth in' .theollow--`Sffafnd will "he more `readily aunderstoo "ompanyig.' drawing/#wherein,the circuit l'coniiejctions; nndf.' medianieins fot." the ypreferred-embodiment areehovv'n the plie diagramiferrecl..v

lector Aeonssts of' ecrite' 'nuns 1, 2, 3

1nte l segments 5.o, 5 7', M1169' ed; when 'ontsmet mieli. l0

l ton; @bij non eonduetf ,i also. provi-glen en edf 122 which i5 brush.13 to a successivelyicon neet repetition thereof/..5

iigeh'coHector groeps of seg groupe the smaller the?, nrc necessary tobet to complete cycle otfoperotions.. The collector in the accompanyingdruwingshows inV dotted lines, the rositions 'of ythe l:uiditionnlsegments re quired to Ineke up groups. The circuit connections of groups2, 3 andlfl being identical with and prefthe' three iifiditionnl y'duced 1s determined as will be liexplained. The

n miopia erably connected -to the same apparatus as group, 1, areomitted-to avoid confusion.

The insulated segments' to 9linclusive, are connected to the movablecontacts of a get .of pole changers 15, 1s, 17, 1e and 19 ls l suitablemeans as, for example, the wel known selectin apparatus controlled bykeys arraned 1n the form of the ordina typewriter yboard, or by any ofthe wel knownautomatic devices whose operationv is controlled by arforated per ta or the like. Preferaliley the ap piratas vgliichcontrols the pole changers a effects the movement of a line switch 21,moving a contact 22fthereof from a fixed contact 23 to a fixed contact24. It also rates a starter switch whose function will be hereinafter exlained.

e movable'contact 22 of line switch 21 Y is connected' to atransmission'line L and ceiver.

through a suitable resistance 31 -to a pair of rela s 32 and 33, whilethe fixed contact 24 of this switch is joined to the common ring 11 ofcollector A which is `grounded as shown. The fixed contact 23 of switch21 is likewise joined to the same terminals 'of the relays 32 and 33asis the resistance 31. Re'- lays 32 and 33 are polarized sothat eachresponds to current impulses ogn certain character. In the particularsystem shown, relay 32 is positively jmlarized'whilc relay 33 isnegativelypolarized. These polarized relays copemte with thedistributing appparatus B'to control such apparatus in the performanceof its functions ratus, like the. currelrticollwtor, 4consista of anumber of groups fof insulated segments 35, 36,37, 38 and 1, there beingas many groups of these segments as there are groups of segments on thccorlesjmnding current collector A. Preferably each ofthe segments 35y to39 inclusive, of each group is grounded through the winding of anelectmmaguet 45, 46, 47, 48 and 49 respectively,

which, in their omration, may control any4 desired form ofselectngapparatus as, for example, the character and operationselectingmechanism of afprinting telegraph re- )f course, it will bereadily understood, however, that if multiplex operation is desired thesegments of the several groups will lieconnected to elcctromagnets ofdifferent selecting apparatus, just as the groups of segments of colcctor A will be connected to diere'nt current control means. A rotating'brush-50, when moved in the direction lvely whichV make up a currentcontro means or a divided source of energy 20 This appa-' of the arrow,successively interconnects the segments 35 to 39 inclusive, and a commonconducting ring 51.

Brushes 10 and 13 of current collector A are insulatively carried by arotatable arm 53, the movement of which is accomplished through' theagency of a ratchet wheel 54 and a pawl Paw] is pivotally carried on onefree end of a pivoted armature lever .56, the other free end of which isadapted to be attracted by an actuating electromagnet 57. A suitablespring 58 returns thc pawl and armature lever to their normal positionwhen electronmgnet 57 is denergzed. in the structure disclosed thebrushes being moved forward upon the deiinergization of thiselectromagnet and normally resting upon the first segment of one lof thegroups. The winding of electromagnet- 57 is connected to a groundedsource of energy 6() and to armature lever 56. It isalso connected to anarmature 61 of n control relay 62. This control relay, in addition toarmature, 61 is provided with an armature 63 connected to the movablecontact of the starter switch 30, the fixed contact of which isgrounded. and adapted to cooperate with a pair of fixed contacts 64 and65. Contact 64 is connected to a contact 66 coperating with armaturelever 56, and fixed contact is connected to segment 12 of collector Aand one terminal of the winding of relay 62, the other terminal of whichis connected to the grounded source of energy 63. Armature 61 of relay62 cooperates with a front contact which is grounded.

The Abrush 50 of the. distributing ap )arat-us B is insula'tivelycarried b v a rotatalilc arm 70 adapted to be moved by a ratchet wheel'IlV and a cooperating pawl 72. `The pawl 72 is .pivotally carried by anarmature ever 73 of an actuating clectromagnet 7 and ylike the pawl 55,moves its coperating arm 70 upon'tlle deiinergizatiou of elecnected to acommon conducting ring 5l of the distributing apparatus B. Armature 81is connected to ground and one terminal of the relay 32 and cooperateswith a front con` tact connected to one terminal of the winding of theelectmmagnet 74. the other terminal of which is connected to a groundedsource of energy 85. Relay33 is provided with one armature only which isgrounded and connected to one terminal of this relay and cooperates witha front contact connected to thc. same terminall of the winding of BESTVILBLE COPY electromagnet 74 as is "diev front contact co' operatingwitharmature Blvofi'elay 32.

The operation of vthe system and mecha? nisri.s,wlien used as a combinedimpulse. transmitter and'eiect'distributeig islas follows, it beingunderstood. that the station' at the vdistant"end ofthe transmissionline L is provdedwwith polarized relays similar to 32 and anddistributing apparatus Vsimilar to B.l The distant station may,v for thepurpose `of communication, belikewise prof` vided with current controlmeans 4and one or more current collectors similarfto A, al-= though itwill be readily understood that vthis'apparatus is unnecessary iortlieproper receipt andfdistribut-ion of current impulse effects.' v y .y i

AWhen the keyboard or thefautomatic se leeting apparatusy :il'ects thepole eliange'rs to 19 inclusive, reverses the.connection'` of line'switch` 21 and closes starterv switch Z-lllfa'ci'rcuit is completed.Vfrom grounded "source (30, through electromagnet', arma@` tureIlevel-C569 contacts 66 andAjG-i, armature ($3 and switehQOto ground,energizing electrrniiagnet?. The {irst impulse is of'positive or'negative polarity, depending -upon whether the Inova ble Contact of polechanger 15 remaineagainst the right-hand contact lor is moved to theleft-hand contact thereol, and ii'ndsl a. path to transmission line Lrin parallel with iesietfince 3l and the polari'/}ed` relays 32 andvflfithrougli contacts 24 and 22 of line Switch 2l. The energization of`electrom'agnet s'i7lxrntateg .armature lever 5G about its pivotJvagainst Vthe tension of;

spring 5S.; advancing the pa wl Minton-position to engage `the nextktooth onf the ratchet v (Sland ring' l1. kThe. first impulseis therebyterminati-d because oi the. breaking' 'of the 'y wheel 5l. Themoveinentol' arliiaturc lever 5u likewise interruptsy tliecir'cilitprevioulsly traced ,by disengagingr itself from contact 66, whereuponelectromannet A.'Sisy again deiinergiz'cil. The retraction off yarmaturei lever 56 and pawlv 55 by spring' 38 advances arm konestep,wlieije'upou brush l() moves tozaposition where it-inteiconnect-ssegment previouslytraeed Circuit vifioni source 2l), n

noeuifi-ent interval is "produced by theeinsu'- ationbetweenseginents.,"i 'and scondiinpulse is' initiated-by the. completing ol ay newcireuitfioi Source 2O through pole changer 16 and .segment (l,

(i and the 'condition of rpole changer lll. and is terininat'etl by theSubseqiient incrementy oi ai'in 53. caused/by the second automatic'i'inergi'i Zation andndeiincrgfiznition (ne eleetioniaguet e571This'self-interrupting action oltlieeier-` troinechanufal'actuatingl.system for curia-int vcollector Aeontinuesj, resulting' Aint'hepijoduction ofeuccessiye currentimpulses until i brush lfjintei'cmneetseegmentflQ and .ring

`miopia ,nientli and ring' 51.

.erative Yrelation with the el 'C The, Second impulse .is controlled bythe` 'l ground. .lib-lay ilpulls up its-armature and iinarinature 61completing a cire in, v 'forjcieetroinagnet 57 causing pawi to he l`let, in whichlcondition of -the collector the 65 -rlast impulse ofcycle 1s-finitiateii, waere'- -upona newcondition arises which will liepresently explained Whenfbrush 1G in teiconnectingieme ineiitl-,'andring 11, apositive or ne; `-currentwill flow as hereinbeforc dem If theimpulse is of pi'i'sfiti-'ve polariti 32 alone will 'he energized.;`'llhe all. of armature El() of, this i relay comi: circuit fromgrounded source 82g,

n'iagnet '45 lperforms yits function in lect-ing apparatus.`The.attraetion o..

ture 8 1 'closes a ircuit including grounded source -85 .andelectromagm'causing vthis electromagnet to more rma 'ture lever73v and pewlltl, sothat-the -pawl -is advanced into a.positioirto-"eugage the next. toothron ratchet' wheel Tl.` The iii-st impulse from battery-.20.15 terminatedwhen( pawl 55 moves brush' 10 from segment 5, as"

hereinbefore described, whereupon relay B2i is clenergized, opening the'previously traced' energizing circuits forelectioinagne'ts 90 .45 and74. The denergization o electroyinaefnet 74 allows sprin 7 5-to advance:iwi

72 so that the brush 50 tii'itefrcmineet# segf- Ifthe iirst iinpuleehowever, 'had been negative instead of poesie tive. relay only. wouldhave. heen energized, anrlsince this relay cauliave no coop oniafzuetel5 to 49. inclusive, the selectingif apparatus would reniaini-uactive,the only effect being loir thel eneigization anddenergizatienof'eleeti'oinag'n'et 7l, reulting in the -for "ard Step ofarm 70, as` hereinbefore described.V As,

brush' l10. 1no\* ;is step-by-stepover the re# inaining segmento (l, to.9v inclusive, ijxosiii'ive op negative impulse ,y -tlepeiiling upon thev condition of pole changers 16.; toflllurclusive,

pleteil from grounded source 68, control lay (32.;segiiient 12,'biusliBland ringl il to advanced'ready toinove armfinnad .tional steptothe-first segn'ient of the nent 'group when the circuit'rv isinterrupted.

l pulses.

Armature 63, by moving from contact 64 to contact G5, completes aholding circuit for control relay 62 through starter switch 30, andinterrupts the energizing circuit for actuating clectromagnet 57 as longas the starter switch is closed. This arrests the step-by-step movementof arm 53 and prevents the inadvertent repetition of a given combinationof impulses, necessitating that starter switch 30 at least, be openedand again closed between each group of im- The opening of switch 30dener` giros relay 62 whereupon the circuits of cloctromagnets 57 and 74are opened allowin,v pawls 55 and 72 to move their respective brushesforward to the first segment of flaA next group and the apparatus isagain ii normal position ready to begin a new cycle of operations.

VThe operation of a distributing and selecting apparatus such as B, andthe electioniagnets 45 to 49 inclusive at the distant station, or theoperation of this apparatus in the station shown by impulses arrivingover line L instead of from source 20, is the same as hereinafterdescribed. In this case, however. the current collector A and itsactuating mechanism and the polel changers 15 to 19 inclusive remaininactive.

lVliat is claimed is:

1. A selecting system comprising currentf polarity control means, arevoluble step-bystep current collector cooperating therewith to forni asuccession ofpolarity-selective current impulses. and a/step-by-step current distributing apparatus controlled by.

the current impulses so produced.

'2. A selective system comprising current polarity control means, acurrent-collector cooperating therewith, an electromagnet for effectingthe intermittent operation of said collector to forni a .succession ofcurrent imf pulses oi unvaried number but selectively variable polarity,current distributing apparatus, and an electromechanical actuatortherefor controlled by the current impulses so produced.

3. A selecting system comprising electromechanical selecting apparatus,distributing apparatus to deliver current thereto, a plurality ofpolarized relays each 'controlling thc action of said selecting and saiddistributing apparatus, current control means for determining thecharacter of` each impulsc. and an electromechanical current collectorcooperating with said means to forni a succession of impulses toA actupon said relays.

4. .\k selecting apparatus comprising a currcnt impulse collector, anelectromagnet for providing `an vintermittent movement therefor, currentcontrol means for determinin'g the character vci the impulses andcooperating with said collector to form :i succession of'iiiipulses ofselectively variable switch.

7. A selecting apparatus comprising a. lcurrent im ulse collector, meansfor actuating said co lector, current control means for determining thecharacter of each impulse and coperati with said collector to form asuccessione impulses of'unvaried num-- ber, for effecting each characterselection, and current distributing apparatus controlled by the currentimpulses so produced. 48. A selecting'system comprising .a currentcollector, electromechanical means for actuating said collector, saidmeans being adapted to open and close its energizing cir cuitintermittently, current-control means coperatng with said collector toform groups of impulses of selectively variable polarity, the impulsesof each group co- 10 operating to produce one selection, and npparatuscoperating with said collector and.'

said control means `for controlling the operation of saidelectromechanical means.

9. A selecting system comprising a selecting mechanism, a transmissionline for providing a selectable succession of current impulsesofopposite polarity, u distributcr adapted to be operated step by step,a plurality of relays each responsive tolinel current impulses ofdifferent character and cooperating with said distributer and saidVmechanism whereby said mechanism is controlled by the polarity of theline impulses,

' and an electromechanism controlled by the'115 line current impulsesand coperating with said relays for stepping said distrihuter in unisonwith said impulses; f 10. A selecting system comprising a lectingmechanism, a transmission line for' providing a selective succession ofcurrent impulses, a distributer for ldelivering currenti to saidmechanism, uml an electronicclianical actuator for giving astep-by-stepmoven'icnt tosaid distributer, said actuator being controlled hy all ofthe linecurrent impulses, and said mechanism being actuated only byimpulses of a given polarity. 11. A selecting system comprising currentpolarity control means, a currentcollector cperatng therewith, aneectxomagnet effecting the intermittent operation of Said collector toform ka succession of selective current impulses of varabe poatrity, current distributing apparatus, mechanical actuator therefr ntroled by thecurrent impulses so produeed.

for 'n and 'an eectro'- In Witness whereo, I hereimto subserme WitnessesE. Enum,- K. L. STAI-IL.

AMGS F. DXXQN.

